Index: source/libvpx/vp8/common/arm/neon/idct_dequant_0_2x_neon.asm |
=================================================================== |
--- source/libvpx/vp8/common/arm/neon/idct_dequant_0_2x_neon.asm (revision 0) |
+++ source/libvpx/vp8/common/arm/neon/idct_dequant_0_2x_neon.asm (revision 0) |
@@ -0,0 +1,81 @@ |
+; |
+; Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
+; |
+; Use of this source code is governed by a BSD-style license and patent |
+; grant that can be found in the LICENSE file in the root of the source |
+; tree. All contributing project authors may be found in the AUTHORS |
+; file in the root of the source tree. |
+; |
+ |
+ |
+ EXPORT |idct_dequant_0_2x_neon| |
+ ARM |
+ REQUIRE8 |
+ PRESERVE8 |
+ |
+ AREA ||.text||, CODE, READONLY, ALIGN=2 |
+;void idct_dequant_0_2x_neon(short *q, short dq, |
+; unsigned char *dst, int stride); |
+; r0 *q |
+; r1 dq |
+; r2 *dst |
+; r3 stride |
+|idct_dequant_0_2x_neon| PROC |
+ push {r4, r5} |
+ vpush {d8-d15} |
+ |
+ add r12, r2, #4 |
+ vld1.32 {d2[0]}, [r2], r3 |
+ vld1.32 {d8[0]}, [r12], r3 |
+ vld1.32 {d2[1]}, [r2], r3 |
+ vld1.32 {d8[1]}, [r12], r3 |
+ vld1.32 {d4[0]}, [r2], r3 |
+ vld1.32 {d10[0]}, [r12], r3 |
+ vld1.32 {d4[1]}, [r2], r3 |
+ vld1.32 {d10[1]}, [r12], r3 |
+ |
+ ldrh r12, [r0] ; lo q |
+ ldrh r4, [r0, #32] ; hi q |
+ mov r5, #0 |
+ strh r5, [r0] |
+ strh r5, [r0, #32] |
+ |
+ sxth r12, r12 ; lo |
+ mul r0, r12, r1 |
+ add r0, r0, #4 |
+ asr r0, r0, #3 |
+ vdup.16 q0, r0 |
+ sxth r4, r4 ; hi |
+ mul r0, r4, r1 |
+ add r0, r0, #4 |
+ asr r0, r0, #3 |
+ vdup.16 q3, r0 |
+ |
+ vaddw.u8 q1, q0, d2 ; lo |
+ vaddw.u8 q2, q0, d4 |
+ vaddw.u8 q4, q3, d8 ; hi |
+ vaddw.u8 q5, q3, d10 |
+ |
+ sub r2, r2, r3, lsl #2 ; dst - 4*stride |
+ add r0, r2, #4 |
+ |
+ vqmovun.s16 d2, q1 ; lo |
+ vqmovun.s16 d4, q2 |
+ vqmovun.s16 d8, q4 ; hi |
+ vqmovun.s16 d10, q5 |
+ |
+ vst1.32 {d2[0]}, [r2], r3 ; lo |
+ vst1.32 {d8[0]}, [r0], r3 ; hi |
+ vst1.32 {d2[1]}, [r2], r3 |
+ vst1.32 {d8[1]}, [r0], r3 |
+ vst1.32 {d4[0]}, [r2], r3 |
+ vst1.32 {d10[0]}, [r0], r3 |
+ vst1.32 {d4[1]}, [r2] |
+ vst1.32 {d10[1]}, [r0] |
+ |
+ vpop {d8-d15} |
+ pop {r4, r5} |
+ bx lr |
+ |
+ ENDP ; |idct_dequant_0_2x_neon| |
+ END |